// https://syzkaller.appspot.com/bug?id=6225e7b911f6977538f7bd519ba9811d9fc2cb94
// autogenerated by syzkaller (http://github.com/google/syzkaller)

#define _GNU_SOURCE
#include <endian.h>
#include <fcntl.h>
#include <linux/futex.h>
#include <pthread.h>
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <string.h>
#include <sys/stat.h>
#include <sys/syscall.h>
#include <unistd.h>

static uintptr_t syz_open_dev(uintptr_t a0, uintptr_t a1, uintptr_t a2)
{
  if (a0 == 0xc || a0 == 0xb) {
    char buf[128];
    sprintf(buf, "/dev/%s/%d:%d", a0 == 0xc ? "char" : "block", (uint8_t)a1,
            (uint8_t)a2);
    return open(buf, O_RDWR, 0);
  } else {
    char buf[1024];
    char* hash;
    strncpy(buf, (char*)a0, sizeof(buf));
    buf[sizeof(buf) - 1] = 0;
    while ((hash = strchr(buf, '#'))) {
      *hash = '0' + (char)(a1 % 10);
      a1 /= 10;
    }
    return open(buf, a2, 0);
  }
}

static void test();

void loop()
{
  while (1) {
    test();
  }
}

struct thread_t {
  int created, running, call;
  pthread_t th;
};

static struct thread_t threads[16];
static void execute_call(int call);
static int running;
static int collide;

static void* thr(void* arg)
{
  struct thread_t* th = (struct thread_t*)arg;
  for (;;) {
    while (!__atomic_load_n(&th->running, __ATOMIC_ACQUIRE))
      syscall(SYS_futex, &th->running, FUTEX_WAIT, 0, 0);
    execute_call(th->call);
    __atomic_fetch_sub(&running, 1, __ATOMIC_RELAXED);
    __atomic_store_n(&th->running, 0, __ATOMIC_RELEASE);
    syscall(SYS_futex, &th->running, FUTEX_WAKE);
  }
  return 0;
}

static void execute(int num_calls)
{
  int call, thread;
  running = 0;
  for (call = 0; call < num_calls; call++) {
    for (thread = 0; thread < sizeof(threads) / sizeof(threads[0]); thread++) {
      struct thread_t* th = &threads[thread];
      if (!th->created) {
        th->created = 1;
        pthread_attr_t attr;
        pthread_attr_init(&attr);
        pthread_attr_setstacksize(&attr, 128 << 10);
        pthread_create(&th->th, &attr, thr, th);
      }
      if (!__atomic_load_n(&th->running, __ATOMIC_ACQUIRE)) {
        th->call = call;
        __atomic_fetch_add(&running, 1, __ATOMIC_RELAXED);
        __atomic_store_n(&th->running, 1, __ATOMIC_RELEASE);
        syscall(SYS_futex, &th->running, FUTEX_WAKE);
        if (collide && call % 2)
          break;
        struct timespec ts;
        ts.tv_sec = 0;
        ts.tv_nsec = 20 * 1000 * 1000;
        syscall(SYS_futex, &th->running, FUTEX_WAIT, 1, &ts);
        if (running)
          usleep((call == num_calls - 1) ? 10000 : 1000);
        break;
      }
    }
  }
}

#ifndef __NR_openat
#define __NR_openat 295
#endif
#ifndef __NR_signalfd4
#define __NR_signalfd4 327
#endif
#ifndef __NR_ioctl
#define __NR_ioctl 54
#endif
#ifndef __NR_mmap
#define __NR_mmap 192
#endif
#undef __NR_mmap
#define __NR_mmap __NR_mmap2

long r[4];
void execute_call(int call)
{
  switch (call) {
  case 0:
    syscall(__NR_mmap, 0x20000000, 0xfff000, 3, 0x32, -1, 0);
    break;
  case 1:
    memcpy((void*)0x203c0fef, "/selinux/relabel", 17);
    r[0] = syscall(__NR_openat, 0xffffff9c, 0x203c0fef, 2, 0);
    break;
  case 2:
    *(uint64_t*)0x20f4e000 = 0;
    r[1] = syscall(__NR_signalfd4, r[0], 0x20f4e000, 8, 0);
    break;
  case 3:
    memcpy((void*)0x20ab9000, "/selinux/avc/hash_stats", 24);
    r[2] = syscall(__NR_openat, 0xffffff9c, 0x20ab9000, 0, 0);
    break;
  case 4:
    syscall(__NR_ioctl, r[0], 0x81785501, 0x20e5b000);
    break;
  case 5:
    syscall(__NR_ioctl, r[1], 0x5460, 0x20000ff8);
    break;
  case 6:
    syscall(__NR_mmap, 0x20000000, 0xfff000, 3, 0x32, -1, 0);
    break;
  case 7:
    memcpy((void*)0x208be000, "/dev/usbmon#", 13);
    r[3] = syz_open_dev(0x208be000, 0, 0);
    break;
  case 8:
    *(uint32_t*)0x203a5000 = 0x7fff;
    *(uint32_t*)0x203a5004 = 2;
    *(uint32_t*)0x203a5008 = 0x1ff;
    *(uint32_t*)0x203a500c = 0;
    *(uint32_t*)0x203a5010 = 0;
    *(uint8_t*)0x203a5014 = 0;
    *(uint8_t*)0x203a5015 = 0;
    *(uint8_t*)0x203a5016 = 0;
    *(uint8_t*)0x203a5017 = 0;
    *(uint8_t*)0x203a5018 = 0;
    *(uint8_t*)0x203a5019 = 0;
    *(uint8_t*)0x203a501a = 0;
    *(uint8_t*)0x203a501b = 0;
    *(uint8_t*)0x203a501c = 0;
    *(uint8_t*)0x203a501d = 0;
    *(uint8_t*)0x203a501e = 0;
    *(uint8_t*)0x203a501f = 0;
    *(uint8_t*)0x203a5020 = 0;
    *(uint8_t*)0x203a5021 = 0;
    *(uint8_t*)0x203a5022 = 0;
    *(uint8_t*)0x203a5023 = 0;
    *(uint8_t*)0x203a5024 = 0;
    *(uint8_t*)0x203a5025 = 0;
    *(uint8_t*)0x203a5026 = 0;
    *(uint8_t*)0x203a5027 = 0;
    *(uint8_t*)0x203a5028 = 0;
    *(uint8_t*)0x203a5029 = 0;
    *(uint8_t*)0x203a502a = 0;
    *(uint8_t*)0x203a502b = 0;
    *(uint8_t*)0x203a502c = 0;
    *(uint8_t*)0x203a502d = 0;
    *(uint8_t*)0x203a502e = 0;
    *(uint8_t*)0x203a502f = 0;
    *(uint8_t*)0x203a5030 = 0;
    *(uint8_t*)0x203a5031 = 0;
    *(uint8_t*)0x203a5032 = 0;
    *(uint8_t*)0x203a5033 = 0;
    *(uint8_t*)0x203a5034 = 0;
    *(uint8_t*)0x203a5035 = 0;
    *(uint8_t*)0x203a5036 = 0;
    *(uint8_t*)0x203a5037 = 0;
    *(uint8_t*)0x203a5038 = 0;
    *(uint8_t*)0x203a5039 = 0;
    *(uint8_t*)0x203a503a = 0;
    *(uint8_t*)0x203a503b = 0;
    *(uint8_t*)0x203a503c = 0;
    *(uint8_t*)0x203a503d = 0;
    *(uint8_t*)0x203a503e = 0;
    *(uint8_t*)0x203a503f = 0;
    *(uint8_t*)0x203a5040 = 0;
    *(uint8_t*)0x203a5041 = 0;
    *(uint8_t*)0x203a5042 = 0;
    *(uint8_t*)0x203a5043 = 0;
    *(uint8_t*)0x203a5044 = 0;
    *(uint8_t*)0x203a5045 = 0;
    *(uint8_t*)0x203a5046 = 0;
    *(uint8_t*)0x203a5047 = 0;
    *(uint8_t*)0x203a5048 = 0;
    *(uint8_t*)0x203a5049 = 0;
    *(uint8_t*)0x203a504a = 0;
    *(uint8_t*)0x203a504b = 0;
    *(uint8_t*)0x203a504c = 0;
    *(uint8_t*)0x203a504d = 0;
    *(uint8_t*)0x203a504e = 0;
    *(uint8_t*)0x203a504f = 0;
    *(uint8_t*)0x203a5050 = 0;
    *(uint8_t*)0x203a5051 = 0;
    *(uint8_t*)0x203a5052 = 0;
    *(uint8_t*)0x203a5053 = 0;
    *(uint8_t*)0x203a5054 = 0;
    *(uint8_t*)0x203a5055 = 0;
    *(uint8_t*)0x203a5056 = 0;
    *(uint8_t*)0x203a5057 = 0;
    *(uint8_t*)0x203a5058 = 0;
    *(uint8_t*)0x203a5059 = 0;
    *(uint8_t*)0x203a505a = 0;
    *(uint8_t*)0x203a505b = 0;
    *(uint8_t*)0x203a505c = 0;
    *(uint8_t*)0x203a505d = 0;
    *(uint8_t*)0x203a505e = 0;
    *(uint8_t*)0x203a505f = 0;
    *(uint8_t*)0x203a5060 = 0;
    *(uint8_t*)0x203a5061 = 0;
    *(uint8_t*)0x203a5062 = 0;
    *(uint8_t*)0x203a5063 = 0;
    *(uint8_t*)0x203a5064 = 0;
    *(uint8_t*)0x203a5065 = 0;
    *(uint8_t*)0x203a5066 = 0;
    *(uint8_t*)0x203a5067 = 0;
    *(uint8_t*)0x203a5068 = 0;
    *(uint8_t*)0x203a5069 = 0;
    *(uint8_t*)0x203a506a = 0;
    *(uint8_t*)0x203a506b = 0;
    *(uint8_t*)0x203a506c = 0;
    *(uint8_t*)0x203a506d = 0;
    *(uint8_t*)0x203a506e = 0;
    *(uint8_t*)0x203a506f = 0;
    *(uint8_t*)0x203a5070 = 0;
    *(uint8_t*)0x203a5071 = 0;
    *(uint8_t*)0x203a5072 = 0;
    *(uint8_t*)0x203a5073 = 0;
    *(uint8_t*)0x203a5074 = 0;
    *(uint8_t*)0x203a5075 = 0;
    *(uint8_t*)0x203a5076 = 0;
    *(uint8_t*)0x203a5077 = 0;
    *(uint8_t*)0x203a5078 = 0;
    *(uint8_t*)0x203a5079 = 0;
    *(uint8_t*)0x203a507a = 0;
    *(uint8_t*)0x203a507b = 0;
    *(uint8_t*)0x203a507c = 0;
    *(uint8_t*)0x203a507d = 0;
    *(uint8_t*)0x203a507e = 0;
    *(uint8_t*)0x203a507f = 0;
    *(uint8_t*)0x203a5080 = 0;
    *(uint8_t*)0x203a5081 = 0;
    *(uint8_t*)0x203a5082 = 0;
    *(uint8_t*)0x203a5083 = 0;
    *(uint8_t*)0x203a5084 = 0;
    *(uint8_t*)0x203a5085 = 0;
    *(uint8_t*)0x203a5086 = 0;
    *(uint8_t*)0x203a5087 = 0;
    *(uint8_t*)0x203a5088 = 0;
    *(uint8_t*)0x203a5089 = 0;
    *(uint8_t*)0x203a508a = 0;
    *(uint8_t*)0x203a508b = 0;
    *(uint8_t*)0x203a508c = 0;
    *(uint8_t*)0x203a508d = 0;
    *(uint8_t*)0x203a508e = 0;
    *(uint8_t*)0x203a508f = 0;
    *(uint8_t*)0x203a5090 = 0;
    *(uint8_t*)0x203a5091 = 0;
    *(uint8_t*)0x203a5092 = 0;
    *(uint8_t*)0x203a5093 = 0;
    *(uint8_t*)0x203a5094 = 0;
    *(uint8_t*)0x203a5095 = 0;
    *(uint8_t*)0x203a5096 = 0;
    *(uint8_t*)0x203a5097 = 0;
    *(uint8_t*)0x203a5098 = 0;
    *(uint8_t*)0x203a5099 = 0;
    *(uint8_t*)0x203a509a = 0;
    *(uint8_t*)0x203a509b = 0;
    *(uint8_t*)0x203a509c = 0;
    *(uint8_t*)0x203a509d = 0;
    *(uint8_t*)0x203a509e = 0;
    *(uint8_t*)0x203a509f = 0;
    *(uint8_t*)0x203a50a0 = 0;
    *(uint8_t*)0x203a50a1 = 0;
    *(uint8_t*)0x203a50a2 = 0;
    *(uint8_t*)0x203a50a3 = 0;
    *(uint8_t*)0x203a50a4 = 0;
    *(uint8_t*)0x203a50a5 = 0;
    *(uint8_t*)0x203a50a6 = 0;
    *(uint8_t*)0x203a50a7 = 0;
    *(uint8_t*)0x203a50a8 = 0;
    *(uint8_t*)0x203a50a9 = 0;
    *(uint8_t*)0x203a50aa = 0;
    *(uint8_t*)0x203a50ab = 0;
    *(uint8_t*)0x203a50ac = 0;
    *(uint8_t*)0x203a50ad = 0;
    *(uint8_t*)0x203a50ae = 0;
    *(uint8_t*)0x203a50af = 0;
    *(uint8_t*)0x203a50b0 = 0;
    *(uint8_t*)0x203a50b1 = 0;
    *(uint8_t*)0x203a50b2 = 0;
    *(uint8_t*)0x203a50b3 = 0;
    *(uint8_t*)0x203a50b4 = 0;
    *(uint8_t*)0x203a50b5 = 0;
    *(uint8_t*)0x203a50b6 = 0;
    *(uint8_t*)0x203a50b7 = 0;
    *(uint8_t*)0x203a50b8 = 0;
    *(uint8_t*)0x203a50b9 = 0;
    *(uint8_t*)0x203a50ba = 0;
    *(uint8_t*)0x203a50bb = 0;
    *(uint8_t*)0x203a50bc = 0;
    *(uint8_t*)0x203a50bd = 0;
    *(uint8_t*)0x203a50be = 0;
    *(uint8_t*)0x203a50bf = 0;
    *(uint8_t*)0x203a50c0 = 0;
    *(uint8_t*)0x203a50c1 = 0;
    *(uint8_t*)0x203a50c2 = 0;
    *(uint8_t*)0x203a50c3 = 0;
    *(uint32_t*)0x203a50c4 = 0x80000001;
    *(uint32_t*)0x203a50c8 = 0x52;
    *(uint8_t*)0x203a50cc = 0;
    *(uint8_t*)0x203a50cd = 0;
    *(uint8_t*)0x203a50ce = 0;
    *(uint8_t*)0x203a50cf = 0;
    *(uint8_t*)0x203a50d0 = 0;
    *(uint8_t*)0x203a50d1 = 0;
    *(uint8_t*)0x203a50d2 = 0;
    *(uint8_t*)0x203a50d3 = 0;
    *(uint8_t*)0x203a50d4 = 0;
    *(uint8_t*)0x203a50d5 = 0;
    *(uint8_t*)0x203a50d6 = 0;
    *(uint8_t*)0x203a50d7 = 0;
    *(uint8_t*)0x203a50d8 = 0;
    *(uint8_t*)0x203a50d9 = 0;
    *(uint8_t*)0x203a50da = 0;
    *(uint8_t*)0x203a50db = 0;
    *(uint8_t*)0x203a50dc = 0;
    *(uint8_t*)0x203a50dd = 0;
    *(uint8_t*)0x203a50de = 0;
    *(uint8_t*)0x203a50df = 0;
    *(uint8_t*)0x203a50e0 = 0;
    *(uint8_t*)0x203a50e1 = 0;
    *(uint8_t*)0x203a50e2 = 0;
    *(uint8_t*)0x203a50e3 = 0;
    *(uint8_t*)0x203a50e4 = 0;
    *(uint8_t*)0x203a50e5 = 0;
    *(uint8_t*)0x203a50e6 = 0;
    *(uint8_t*)0x203a50e7 = 0;
    *(uint8_t*)0x203a50e8 = 0;
    *(uint8_t*)0x203a50e9 = 0;
    *(uint8_t*)0x203a50ea = 0;
    *(uint8_t*)0x203a50eb = 0;
    *(uint8_t*)0x203a50ec = 0;
    *(uint8_t*)0x203a50ed = 0;
    *(uint8_t*)0x203a50ee = 0;
    *(uint8_t*)0x203a50ef = 0;
    *(uint8_t*)0x203a50f0 = 0;
    *(uint8_t*)0x203a50f1 = 0;
    *(uint8_t*)0x203a50f2 = 0;
    *(uint8_t*)0x203a50f3 = 0;
    *(uint8_t*)0x203a50f4 = 0;
    *(uint8_t*)0x203a50f5 = 0;
    *(uint8_t*)0x203a50f6 = 0;
    *(uint8_t*)0x203a50f7 = 0;
    *(uint8_t*)0x203a50f8 = 0;
    *(uint8_t*)0x203a50f9 = 0;
    *(uint8_t*)0x203a50fa = 0;
    *(uint8_t*)0x203a50fb = 0;
    *(uint8_t*)0x203a50fc = 0;
    *(uint8_t*)0x203a50fd = 0;
    *(uint8_t*)0x203a50fe = 0;
    *(uint8_t*)0x203a50ff = 0;
    *(uint8_t*)0x203a5100 = 0;
    *(uint8_t*)0x203a5101 = 0;
    *(uint8_t*)0x203a5102 = 0;
    *(uint8_t*)0x203a5103 = 0;
    *(uint8_t*)0x203a5104 = 0;
    *(uint8_t*)0x203a5105 = 0;
    *(uint8_t*)0x203a5106 = 0;
    *(uint8_t*)0x203a5107 = 0;
    *(uint8_t*)0x203a5108 = 0;
    *(uint8_t*)0x203a5109 = 0;
    *(uint8_t*)0x203a510a = 0;
    *(uint8_t*)0x203a510b = 0;
    syscall(__NR_ioctl, r[2], 0xc10c5541, 0x203a5000);
    break;
  case 9:
    syscall(__NR_mmap, 0x20ac6000, 0x4000, 0x1000004, 0x8011, r[3], 0);
    break;
  case 10:
    syscall(__NR_ioctl, r[3], 0x9204, 0xf0b1);
    break;
  }
}

void test()
{
  memset(r, -1, sizeof(r));
  execute(11);
  collide = 1;
  execute(11);
}

int main()
{
  for (;;) {
    loop();
  }
}